I would also like to point that there is only ONE god in midnight and it has no cody, his essence is trrapped in the world, that makes defeat even more difficult.
As for the war that was won, i doubt you can say that, okay the book says so a hundered times, but when you read it all you see that the last war was won against an enemy that hasn't even defended himself: The Humans were already in many internal wars and corruption was everywhere.
The war is still going on, Elves and Dwarves are fighting day and night against Izrador's minions, to say the war is won is what the shadow would like and what the humans believe, but not what most elves think.
Okay, the dwarven and elven most respected and wise personalities may even believe that they will never win, but that is while nothing changes, they have lost hope because they don't see anyway they can make the tides change!
My job, as a DM and as a STORYTELLER, is to make hope spark inside the world again, showing there are other ways and the war can be won, that can be almost impossible and very unlikely, but that is where the PCs go, they are there to fight against all odds and maybe, for they will have to actually deserve it, they will turn the tides...
Not to say that a 4th war cannot be done, but after three i would guess dwarves and elves would want to make a great push on orcs, for the lower their number the unlikely they will rise again...
Anyway, the survival thing is what makes me think: Would I like a game where every meal must be roleplayed and rollplayed for? The answer is no, but once in a while or at justified times it would be not just interesting, but important.
I have talked to my players about this world a lot and still will in a major session that is for nothing else than: what do you want of the game? what you wouldnt accept to be pushed too far, and so on and so forth.
I am not a teenager playing a game out of my mind, i am a very experienced gamer making up a story with my friends, my task is to make a main sotryline, they will change as they can and see fit, my game is not one against another, it is all together to have fun and very exciting memories for many years to come.